Carbureter.



J. MUNDEN.

GABBURETER. APPLICATION EILED 161111.22, 1913.

Pabtnted June 9, 193 .4.

inventor witnesses @fbSZ/i/f/Ui) tlon enggi in connection with which requires no til GAlEtBURETEIt.

specification of Letters Itetcnt. Application filer March 22, 1913.

To all "whom it may concern Be it known. that .l, il'osnrii .lvloisnnrv, a citizen of the United States, residing at Derry township, in the county of l l estmoreland and titate of Pennsylvania, have its vented certain new and useful Improvements in Carburetors; and it do declare the following to be a toll, c ear, and exact description of the invention, such as will enable others skilled in the art to which it appertains to make and use the Sitlirfi, reference being to the accompanying drawings, and to the letters and figures of reference marked thereon, Which form a part of this specification. This invention relates tointernal combos lies, but more particularly to a carbureting or mixing device for the proper vaporization ofdiquid fuel employed for operating the engine.

The invention has for its object to provide 'a carbureting or vaporizing device which can housed in connection with hero-- some oil or the lighter distillates of crude oil, and which is equally elilcient when used gasolene, alcohol and the like.

A further object of the invention is to provide a carbureting or vaporizing device heat supplying; device to assist in the vaporization of the fuel.

A further object of the invention is to provide a carburit' i or vaporizing device which is so constro ed and arranged that no troublesome float feed regulator is re quircd.

A further object of the invention is to provide a carbureting or vaporizing device which is so constructed sudden opening oi the throttle will, allow the engine to instantly respond by prevent ing an excess supply of fuel.

A further object of the invention to provide a carbureting or vaporizing device which by reason of its construction and 'rangemen't is less effected in its operation by Weather or'atmospheric changes than other carbureting or vaporizing: devices now in use, and which by reason of its construction so thoroughly vaporizos the fuel as to render the starting of an engine easily ac complished' in cold Weather.

' With these and other objects in View the invention consists in the novelv construc tion of.the carburetor body and in the novel construction of the needle valve sleeve.

and arranged that a y ng drawing.

- and the surrounding wall 15 of the vertical arrangement of the air the carburetor body and in the of a plurality oil unitin the needle valve sleeve. p

The invention further consists in the crrangerncnt oi anair inlet cheinber surrouiullug the needle valve and in I l construction of the lower poi-ti die valve sleeve. 'lhe invention. further consists in the bination between the needle valve sleeve the nipple forming the seat for the neon valve. e

The invention further consists in the c bination of the carburetor body construct and the air valve arranged between i die valve and the engine.

The invention further consists in other novel details of construction. and in combi nations of parts, all of which will be first fully described and afterward specifically." pointed out in the appended claims.

Referring; to the accompanying drawirug: the figure represents a vertical longitur. nal sectional View of a carbureting or iniio ing device constructed in accordance this invention, the air valve being shown elevation.

Referring to the figure h reference numerals, 1 indicates the cerbu porizing' device which coriorise portion 2, the said body if. vided With u verticei hole or o the upper portion of the body, openingfi communicating with to U bore or opening 4: in the lower cition tho carburetor-body. ."he upper poi in the smnller bore or psssa is 5 to receive a plugg l. which plug-like sleeve 7 and internally threat needle v2 lvc 5.). The to the headed no. enlarged. hugged chai'nber termini at internal shoulder 11. the neeilre o 9 p; ing vertically through the enlarged chain 10 and through the restricted air passage Li ,5 below the internal annular shoulder 11, as will be clearly apparent from the accompa- V The plug-like sleeve ele-- ment 6 is reduced in its external diameter at 13 to provide a, relatively long annul r chamber 14 between the reduced portion ed bore 4 in tapered end of the needle-valve,

bore 3. The relatively small verticalbore 3 terminates at 16 at which point it opens into an enlarged mixing chamber 17, said mixing chamber 17 communicating with a pluits lower end with a longitudinal gradual taper 19, while the extreme lower end of the valve is provided with a relatively blunt taper 20:

Referring now to the nipple 21 in the lower portion of the carbureterbody it will be seen that the'same is provided with a preferably hexagonal enlargement 22 and is threaded at 23 to enter the enlarged threadthe carbureterbody, the hexagonal enlargement 22 bottoming snugly against the bottom surface of the carbureterbody to provide'a fluid tight connection between the parts, while the lowerportion o the nipple 21 is threaded at 24 to receive a suitable pipe connection leading'to the fuel tank. Centrally of the nipple 21 is avertical fuel bore- 25 which terminates at its upper end in a tapered seat 26 to receive the in the manner which will be clearly apparent to those skilled in the art. That portion of the nipple 21 above the threaded portion 23 is reduced in its external diameter as at 24 and the casing-or body portion 2 recessed or undercut as at. 26 to such an-extent as to form an air-chamber 28 and an upward annular extension 27 of the "chamber 28said extension or passage co municati'ng with the intermediate mixing chamber 17; while a horizontal air passage 29 in the carbureterbody etfects communication between the annular air chamber 28 and the atmosphere, as will be apparent from an inspection of the accompanying drawing.

' Referring now to the plug-like sleeve element 6 it'will be seen that a suitable elastic packing 30 is employed under the headed portion 7 so as to permit of a suitable adjustment of the plug-like sleeve element in a vertical direction, while the needle valve 9 is provided with a knurled head 31 and a coil spring 32 which allows for a vertical adjustment of the needle valve and prevents the same from accidental rotation during the operation of the device.

Referring to the accompanying drawing it will be seen that the carbureter body comprises also a lateral exteiision 33 which is provided with a relatively large chamber 34 which communicates with the elongated annulak air passage 14 by means of a horizontal air passage 35, said horizontal air passage 35 being'reduced at 36, in the man-' ner as shown in the accompanying drawing. Suitably seated within the large mixing f enlarged at 42',

and the upper flat fac or valve chamber 34 is a valve 37 preferably 1 of the mushroom type having a stem 38 passing through a guiding boss 39 under the lateral extension 33, the stem being provided with a coil spring 40 in such manner thata suitable tension can be placed upon the valve 37 it being clearly understood that any suitab e tensioning means can be employed in connection with the valve stem.

At the extreme end of the lateral extension 33 is 'a flange 41. for effecting a flanged connection between the carbureter and the engine or between the carbureter and the intakepipe leading to the engine, the position of the carbureter in relation to the engine being entirely immaterial, while a horizontal passage 42 is provided through the flange-41 to allow the atomized or vaporized fuel to freely pass to the engine.

Referring now to the lower portion of the plug-like sleeve member 6, it ,will be seen that the extreme end thereof is slightly the end of the member 6 is provided with an abrupt taper 43 and arelatively gradual taper 44 just above the abrupt taper 43, and it will beseen that the upper reduced portion 27 of the nipple 21 is provided with a flat surface 44 which is directly under the compound tapered end of the plugrlike sleeve element 6, while a centrally extending boss 45 on the nipple 21 partially extends within the compound tapered end of the element 6 about midway the gradual taper.

As will be seen from an inspection of the accompanying drawing an open annular space 46 1s provided between the lower ex-. tended end of the plu -like sleeve element 6 44 of the nipple 21, the size of said space 46 being regulated or adjusted by means of the plug like sleeve element 6; that is to say that movement in a vertical direction of the plug-like sleeve element 6 will increase or diminish the space 46 between the plug-like sleeve element 6 and the nipple 21 as will be apparent from an inspection of the accompanying illustration. 1 Y

Having thus fully described the several parts of this invention its operation is as follows: The carbureting or vaporizing device is first suitably connected to an internal combustion engine and suitably piped to a fuel tank or receptacle which feeds to the carbureter by gravity or by pressure feed. In either event the liquid fuel passes in through the fuel bore 25 in the nipple 21 and but at the top thereof whenthe needle valve 9 is in open position as-shown in the accompanylng drawlng, the amount of fuel being adjustable by means ofthe'said valveasis obvious. Upon the intake or suction stroke of the engine the valve 37 raises, al-

lowing the final mixture of proper explosive proportions of air and fuel to pass to the while the inner surface of Y i 'm the carburetor throughv the w. it is in a state of perfect vapor motion and the proportiom of air to ed by .ieuns of the adjustments eu z'iue cylinder. the eu 'iue suction owing; p21 k l irmii around the ncedlo valve before it passage w-mes the tezoion' upon the air l I 1 the lifting thin-coil. "the Sllllljh. the enginecylinder chutes air to can he zulgi 3 5 l heretofore described so that the mixture jg a3 in through the lemar horizontal :iir pas. will quickly and readily ignite under and ti he bodr p rtion and enter the mu l in ell, weather and atmospheric coiiditiou" u (y hhor upper portion oi. urnvzn'dly 3 through the redo-coo while :11. the some the p 7 53-1. oir r by means of this; i

i ppil'zttil with iucmr .o who facterl ch :1 iuhor m x e he that instant lower flanged portion the pluglilu: While at the some tim. slecvo .i'ncmhert. zit the some time air is thereby e ected. drawn into the ohlio'i r erruogg'cd m Having thus fully described .1

siege in. the plug-5i 1 core u'iesuhcr if? end What i claim new and desiu pussws downw a rd 1y -;1.lil0llll l.l11g the nee it 1; ll. corlniretcr of the "PG r512 strikes agz'liust the shoulder toe oludiu a casing hollow meant; lower end of mid meml'ier iii "the velocity :1 lot I chambered ensiou of air it, incre d at the point owing to with o teueflooed uirdnlc rclaiiwly small poem 1; surroundin .e lug iii lple uiejuihor, chambered. or to. tzgcred portion 1.) of the ueedlo valve 2?. plug and at needle-valve, said plug how-i This constructimi causes air passing owl, i 's: chamber provided with. o coutrru'rtcd poi? weirdl around the needle valve to be deand on air inlet, said and said llcctod against the taper portion it? of adopted to conjointly form m1iutermedizuc the needle Valve and downwardly ogninet- Chamber t'tlld upper and lower chumlwrw the top surface of the lmss 4t? which lorme coxunuuiiouting with will i.utermer=liatr the seat for the needle waive. its the air is ohomloer said upper chamber :Ll o communidin" lto the air ohzu'nhor l0 Letters Patent of the United .idtetes is: A x

go passing dwvnwardly and the fuel .is being cot-log; with the chamber of still lateral e3 red the high velocity and cutting motion tension, said lower and irter ierlioto chomwhich 1 gj fi fij t, thi ni t 3 11 he having external zrirceding mongcs x. it to mix and vaporize the fuel. so that e Said needle-robe controlling the cont-me id perfeo rich vaporization effected. The port of said plug, said port conm'u 4,. roporized fuel Which is formed at the end With fluid ii 'll'lo'l'fi'ifllifitfi Chamber. lot of the uecdlv valve is drawn out through 2. A corhuretcr of the type described. in"

the mixing chamber 1.? between the nipple eluding; 2t casing having a valved chmohered ill and the lower end of the plug-like sleeve extension, and :1 tubular or hollow plug llEtV- member 6 which is adjustable by means ingzui air inlet to its interior and an upper of the plug-like sleeve member (3 so that end collar or shoulder resting upon said 0:18: the velocity and amount of vaporized ing, said plug having adjustable or threaded carrbe controlled at this point. its the connection with said casing, said plug her-- gas leaves this space it conimiugled ing an annular recessed portion forming with the air in the mixing chamber 17 with said casing it chorriber, said plug also which is drawn in through the air ports having a lower end enlargement and at'its 18 and is also roimoingled with the air lower end a port of relatively reduced area fromthe annular chamhcr which is and with a compound. beveled surface eddrawn in through the lower horizontal jzteent a mixing chamber coh ioini'zly formed air passage 29; These dilforent puesages byeuiorging said. casing at the end of said cause a cutting pulvcriziinu movement o' plug and a needle-valve arranged Within the air and when thismir in its disturbed said plug and adopted to control said oort. condition mixes with the rich vaporized gas 3-. A carburetor oft-he type described, in a perfect mixture of air and gas is pro cluding a casing haviIig' a lateral valved exvided for in the mixing chamber 17 from tension, 21 fuel feeding nipple fitted Within B5 whence it passes upwardly through the said. casing, a needle valve, said nipple ham .1 elongated annular air passage 14 and into ing; an upstanding boss around its fuel feed the reduced portion Soot the horizontal air ing bore, :1 tubular plug having an upper passage 35. The velocity oi the air at the cod. air inlet and at its lower end a reduced point o'f 'niizture is great and the air is in bore surrounding said needle valve to prm lo such a state of r tin-house and perturlmtion duce a swift and centrally deflected air curthan; at perfect mixture and vaporization is rent, a portion of which is caused to strike cted" Clhe thus drown into t .on end. of said boss causing a crushing zontol air passage 35 Zlf LlYl. mi? mo outrmrd glancing of the fuel, thercoru chamber 3 Wi. the .2l'?'( a; oth r'portion of said air current being rom the valve 37. K/fillf" V i caused to out downwardly of the sides oil? atubular plug fitted within said saidboss crosswise of the glancing fuel to finely cut and pulverize the same, said casing being enlarged and said plug being reduced to conjointly form chambers in communication with said reduced bore in said tubular plug, the external air and the charnber of said lateral flanged extension.

4. A carbureter of the type described, including a casing having a valved lateral chambered extension, a nipple having a fuelfeeding bore, and a threaded connection with said casing, saidnipple having a reduced upper end uniting with said casingto form a chamber and an upwardly extending assage, said nipple having an upper end around its bore, a tubular plug having an air inlet and an internal shoulder at its lower end, and a port through forming in conjunction with said casing communicating mixing chambers, said chamsaid end, said plug bers themselves communicating with said port and the chamber of said lateral extension, and a needle-valve arranged within said tubular plugand controlling said port. 5. In a carbureter of the type described, a casing having a valved lateral chambered extension, anipple having a fuel feeding bore and ail-upstanding boss around its bore,

casing and air inlet-,a relatively contracted having an lower end, said lower end having port in its a compound tapered or beveled -lower'sur-- face, said casing and said plug conjointly forming triple chambers 'therebetween in communication with said port, the lower end of said plug being adapted to deliver the air received from'the lower chamber 'cross-' wise of the mixture conjointly formed/of the fuel received 'from said nipple and the air from the said relatively reduced port further pulverizing and mixing said mix- Copies of t'his patent may be obtained for nipple having a due upstanding boss at its upper end around its feeding bore, said casing, plug and nipple having passages said plug, and as ture and means for the delivery of the final mixture in the proper explosive proportions to the motor.

6. In a carbureter '01 the type described, including a casing having a valved chambered lateral extension, a chambered plug fitting within said casing and having an upper shouldered end with an elastic packingbetween the shoulder and said casing, said tubular plug having any air-intake through its upper end communicating with its chamber, said chamber having its bottom formed by an internal annular shoulder, said bottom having a; relatively contracted port bottoms having a comered lower surface, a -feed1ng bore and an tlierethrough, said poundbeveled or ta being reduced to conjointly form a triple series of communicating chambers, one communicating with the chamber of said chambered lateral extension, the intermediate one communicating with 'the external air, and the third having a passage also communicating with the external air,

said intermediate five cents each, by addressing the Commissioner of Patents.

Washington, D. C.

said port through the 

